Question about 2009 Jeep Wrangler

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Vehicle won't start, it has clutch interlock, which is only activated in 2wd and 4H , vehicle starts in 4L only, clutch switch??

2009 jeep wrangler wont start, put transfer case into 4L and starts fine, its like the clutch switch is U/S

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Check your owners manual. The 97-06 jeeps have an option to override the clutch safety switch. The override consists of plugging a wire under the dash into a different wire. 2 minutes. But then, make sure the clutch is pressed or you are in neutral before you try to start, or the starter will drive the vehicle. Hope this helps

Posted on Jul 14, 2009

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Take it to the Jeep dealer . It's still under warranty. Won't cost you a penny. Good luck.

Posted on May 23, 2009

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1 Answer

The 4x4 will not engage on my 2003 ford f150. could it the dash switch?


Does yours have Electronic Shift on the Fly (ESOF) Operation The electronic shift on the fly (ESOF) system is an electronic shift 4x4 system that allows the operator to choose between two different 4x4 modes as well as 2-wheel drive. The operator can switch between 2WD and 4H mode at speeds up to 88 km/h (55 mph). To engage or disengage 4L range, the vehicle speed must be less than 5 km/h (3 mph), the brake pedal depressed, and the transmission must be in NEUTRAL. The transfer case is equipped with an electromagnetic clutch which is located inside the case. This clutch is used to spin up the front driveline when shifting from 2WD to 4H mode at speed. When the control switch on the instrument panel is turned, the generic electronic module (GEM) recognizes that a shift has been requested and activates the electromagnetic clutch and the relays which power the transfer case shift motor. When the shift motor reaches the desired position, as determined by the contact plate position inputs to the GEM, power to the shift relays and motors will be removed. When the transfer case front and rear output shafts are synchronized, the spring loaded lockup collar mechanically engages the mainshaft hub to the drive sprocket. Finally, the front axle collar is engaged and the electromagnetic clutch is deactivated.

After reading this material I would not think it was the switch . Maybe an input problem to the GEM module .

Feature Inputs:
  • 4WD Mode Switch (various resistances; go to Table 1).
  • Contact Plate Position Inputs A, B, C, D (grounded when closed, open circuit when open; go to Table 4).
  • Output Speed Shaft (OSS) Sensor (Sinusoid Signal: 0.7V-20V, 2.2 Hz/mph).
  • Brake Input (battery voltage when brake is depressed, open circuit when not activated).
  • Transmission Range Sensor (grounded when transmission is in NEUTRAL, open circuit otherwise).
  • Start/Clutch Depressed Input (go to Table 3).
  • I would take it and have it check for codes !

Dec 02, 2016 | 2003 Ford F-150

1 Answer

How do i check the front axle vacuum selonoid on a 2002 jeep wrangler


02 , just sold mine, best car ever. had, of many.

how do you know that.?

and what are the tires, touching, (dirt, snow,ice, grass , pavement)

what?

this car has part time 4wd, it is not AWD

its not a Grand cheerokee with AWD.

engaging 4wd on ice free pavement is wrong.

http://www.rubicon-trail.com/4WD101/driveline-bind.html



and my fsm states.

read the operators guide in the glove box, it will say....

"2WD is intended to be driven on normal street and highway conditions, such as HARD surfaced roads."

Then

"4H & 4L positions are intended for loose slippery road surfaces only and not intended for normal driving" (They assume paved streets are normal.)

"Driving in 4H or 4L positions on hard surfaces roads, will cause, increased tire wear, and damage to the drive line components."

Unqual tire sizes, will do the same damage. "circumference mismatched"

Last: "do not attmpet to make a shift, while only the front or rear wheels are spinning" No transfer case synchronizer exists and damage will result."
(kill the gear dogs, you will)

May 26, 2014 | 2002 Jeep Wrangler

1 Answer

2000 jeep wrangler wont start


If it won't crank, check clutch safety switch and cables for the starter.
If it cranks but won't start, you'll need to find out if it is ignition or fuel to know where to look next.

Jun 26, 2012 | 1994 Jeep Wrangler

1 Answer

HOW TO SHIFT TO 4 WHEEL DRIVE


Hi - Here is instruction how to do.

From N to 4H

Stop the vehicle completely, place the

transmission in "N" (Neutral) and depress

the brake pedal and the clutch pedal fully

(if equipped), then push in and turn the

switch to shift into "4H".

From 4H to 4H LOCK

You can operate the transfer switch either

when the vehicle is stopped or while the

vehicle is moving.

Position the front wheels straight ahead

and turn the switch to shift into "4H LOCK".

If the vehicle is moving, we recommend

that the speed be less than 100 km/h (60

mph) during this operation.

NOTE:

• When shifting between the transfer

switch position and the transfer gear

position is unmatched, all 4WD indicators

will blink and the buzzer will sound.

• If it is difficult to shift between "4H" and

"4H LOCK" while the vehicle is moving,

try accelerating and decelerating your

vehicle several times after turning the

transfer switch. Be sure to wait until traffic

conditions allow you to accelerate and

decelerate safety before using this procedure.

From 4H LOCK to 4L LOCK

Stop the vehicle completely, place the

transmission in "N" (Neutral) and depress

the brake pedal and the clutch pedal fully

(if equipped), then push in and turn the

switch to shift into "4L LOCK".

From 4L LOCK to 4H LOCK

Stop the vehicle completely, place the

transmission in "N" (Neutral) and depress

the brake pedal and the clutch pedal fully

(if equipped), then push in and turn the

switch to shift into "4H LOCK".

From 4H LOCK to 4H

You can operate the transfer switch either

when the vehicle is stopped or while the

vehicle is moving.

Position the front wheels straight ahead

and turn the switch to shift into "4H". If the

vehicle is moving, we recommend that the

speed be less than 100 km/h (60 mph) during

this operation.

NOTE:

• When shifting between the transfer

switch position and the transfer gear

position is unmatched, all 4WD indicators

will blink and the buzzer will sound.

• If it is difficult to shift between "4H" and

"4H LOCK" while the vehicle is moving,

try accelerating and decelerating your

vehicle several times after turning the

transfer switch. Be sure to wait until traffic

conditions allow you to accelerate and

decelerate safety before using this procedure.

From 4H to N

64J209

Stop the vehicle completely, place the

transmission in "N" (Neutral) and depress

the brake pedal and the clutch pedal fully

(if equipped), then push in and turn the

switch to the mark (1) at the left of the "N"
position, and hold the switch in this posi-

tion for 5 seconds until the "N" indicator

blinks, then turn the switch to the "N" position.

When you turn the transfer switch to the

"N" position, "N" indicator will come on with

the buzzer sound.

CAUTION

• Be sure to stop the vehicle completely

before operating the transfer

switch to shift between "N" and

"4H", or between "4H LOCK" and

"4L LOCK".

• Do not shift between "4H" and "4H

LOCK" unless the front wheels are

in the straight-ahead position and

we recommend that the vehicle

speed be less than 100 km/h (60

mph).

Do not operate the transfer switch

while tires are racing.

• Do not operate your vehicle in "4H

LOCK" or "4L LOCK" on dry, hard

surfaces.

(Continued)

CAUTION

(Continued)

• Do not operate the vehicle while a

4WD mode indicator is blinking

except when shifting between "4H"

and "4L LOCK".

If you operate the vehicle while a

4WD mode indicator is blinking, a

buzzer will sound and the transfer

will shift to "N" (Neutral) to prevent

transfer case damage.

In this case, use the following procedure.

1) Depress the clutch pedal fully (if

equipped) or shift the automatic

transmission gearshift lever to the

"N" position.

2) Turn the transfer switch to the

position previously selected.
3) Operate the transfer switch again.

Feb 01, 2011 | 2007 Suzuki Grand Vitara 4WD

1 Answer

1988 Jeep Sahara, 4 wheel drive will not engage


maybe its just the indicator thats not lighting up

Feb 26, 2010 | 1988 Jeep Wrangler

1 Answer

94 jeep yj 4.0l starts in gear


It should have a safety interlock switch on the clutch to prevent it from cranking with the clutch not depressed. Do a search on the Internet for 94 jeep clutch pedal safety switch. If its an automatic it should have a switch on the transmission linkage to prevent starts out of park.

Feb 01, 2010 | 1994 Jeep Wrangler

1 Answer

THE TRANSFER CASE WILL NOT ENGAGE IN 4H OR 4L. IT IS A 92 WRANGLER 4.0 6 CYL. WHAT IS THE PURPOSE OF THE VACUMM HOSES. BEFORE THE CASE IS REMOVED WHAT TROUBLESHOOTING SHOULD BE ACCOMPLISHED FIRST.. THANK...


4 wheel drive is vacuum activated. Check vac motor 1st as it is probably the reason for it not engaging. I had a 88 cherokee w/ bad vac motor which caused exact problem you describe.

Jul 14, 2009 | 1992 Jeep Wrangler

1 Answer

88 wrangler wont shift


Clutch pedals have a safety interlock switch that keeps a manual transmission vehicle from starting. It sounds like the pin on the bottom of the shifter in the trans is getting worn and needs to be replaced. You can remove the boot on the shifter and the cover on top of the trans and see the pin. It's a simple matter of getting the pin out and installing a new one. Just make sure everything lines up good on the install and everything is clean. Another thing that may be the culprit are the synchronizer plates could be worn nearlt out. To replace or fix this you will need the trans out of the vehicle and tear it down. Start with an inspection of the pin and the linkage as well, then if it doesn't work correctly then you may have to tear into it.

Jun 19, 2009 | 1999 Jeep Wrangler

2 Answers

Don't know how to engage 4WD - No owners manual


I love driving 4x4 jeeps, especially in 4-wheel drive. First, a list of when you should and should not use 4-wheel drive.

2x4 Hi is for normal driving in most weather and anytime you are driving over 50mph.

4x4 HI is for getting you unstuck from mud or snow and can be used up to 50mph but is not recommended for much faster. It is only designed to get you moving and unstuck, it will NOT make it any safer to drive faster on slick surfaces like rain, snow, or ice. Always drive slower on these kinds of surfaces.

4x4 lo (low) is for extreme 4x4 driving like trail riding and mud bogging to get over steep inclines and deep mud without burning up the clutch. 4x4 lo should never be used to drive faster than 25-35mph and should only be used in off road situations.

Neutral (on the 4x4 shifter) is mainly used if you are towing your jeep with any of the wheels on the ground. It completely disengages the transmission from the drive train so you can tow it without damaging the trans.

Now, to shift from one to another. My jeep may be different than yours and I haven't driven my jeep in a while (I had to sell it) but it should shift the same way.

First, make sure you are parked and the wheels are not moving. Put the main gear shift (5-speed) into Neutral, hold down the clutch and move the selector from 2x4 to 4x4 by first pulling the shifter to the side then moving it up or down. Some jeeps (especially older ones) may have a wheel lock on the outside of the wheel hub (AKA hub lock). This must be in the "LOCK" position for 4x4 and "UNLOCK" for normal 2x4 driving. Make sure it is fully engaged in the slot before shifting into 1st. Then you can drive normally, following the guidelines above.

The regular 5-speed transmission will shift just the same as before but you will notice that the jeep will drive much slower in 4x4 lo and it will have much more torque for those really sticky situations.

Good luck! Have fun! And if you do plan on doing some real 4x4'in or mud boggin' make sure you buy a winch for the front of your jeep or bring a friend who has a winch on their truck to get you unstuck from the worst of the worst! Don't forget to rate!

P.S. if you have problems with one or more 4x4 settings you can always shift back to 2x4. Make sure that if you are driving on the highway or in normal driving conditions, you are always in 2x4.

P.P.S. If you are near the Columbia, MO area send me a PM, I'd love to find some new friends to do some 4x4 driving with in the area so I can get back into the sport. I miss it.

Mar 01, 2009 | 1992 Jeep Wrangler

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